Hytryl Sterile Sodium Hyaluronate for Dogs, Cats and Horses is a sodium hyaluronate sterile post-surgical lavage solution designed to replace synovial fluid lost during surgery. Aids normalization of the joint following arthrotomy. Hytryl is used as the final lavage prior to surgical closure of the joint space. Hytryl may be used in cats, dogs, and horses. Hytryl contains 10 mg sodium hyaluronate per ml.